Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cam phu do snippets" » "cam thu do snippets", "chau phu do snippets", "cam phu doi snippets", "cam khu do snippets", "cam phu da snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("cam phu do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cam phu do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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• Adding a wildcard symbol may retrieve word variants: (((("cam phu do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.